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/***************************************************************************
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 *             __________               __   ___.
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 *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
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 *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
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 *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
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 *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
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 *                     \/            \/     \/    \/            \/
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 * $Id: Zeller.c 
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 *
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 * Copyright (C) 2009 Raafat Akkad
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 *
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 * This program is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU General Public License
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 * as published by the Free Software Foundation; either version 2
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 * of the License, or (at your option) any later version.
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 *
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 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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 * KIND, either express or implied.
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 *
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 ****************************************************************************/
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#include "plugin.h"
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int Date, Month, Year, C, S, Day;
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PLUGIN_HEADER
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enum plugin_status plugin_start(const void* parameter)
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{
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     (void)parameter;
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      rb->splash(HZ*2, "Zeller's Congruence for working out the day in which a certain date occured");
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      rb->splash(HZ*2, "Please Enter the date part of the date e.g");
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      Do
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      rb->splash(HZ*2, "Please Enter the month part of the date");
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      it
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      rb->splash(HZ*2, "Please Enter the year part of the date");
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      yourself!
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      if (Month < 3)
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      {
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      Month = Month + 12;
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      Year = Year - 1;
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      }
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      C = Year/100;
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      Year = Year - (100 * C);
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      S =(2.6 * Month - 5.39)+(Year / 4)+(C / 4)+ Date + Year - (2 * C);
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      Day = S - (7 * (S / 7));
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      switch (Day)
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      {
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       case 0:
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            rb->splash(HZ*2, "The date occurred on a Sunday");
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            break;
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       case 1:
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            rb->splash(HZ*2, "The date occurred on a Monday");
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            break;
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       case 2:
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            rb->splash(HZ*2, "The date occurred a Tuesday");
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            break;
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       case 3:
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            rb->splash(HZ*2, "The date occurred a Wednesday");
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            break;
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       case 4:
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            rb->splash(HZ*2, "The date occurred a Thursday");
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            break;
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       case 5:
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            rb->splash(HZ*2, "The date occurred a Friday");
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            break;
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       case 6:
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            rb->splash(HZ*2, "The date occurred a Saturday");
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            break;
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       case 7:
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            rb->splash(HZ*2, "The date occurred a Sunday");
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            break;
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       break;
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      }
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	    rb->splash(HZ*2, "Goodbye");
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    return PLUGIN_OK;
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}